FINISHES

The surface appearance of the various metals after final treatment such as rolling, etc. Over the years the following finishes have become recognized as standard in their respective fields.\nALUMINUM SHEET\n(A) Commercially Bright. \n(B) Bright one side. \n(C) Bright both sides. \n(D) Embossed Sheets (Produced by using embossed rolls). \nBLACK PLATE\n(A) Dull finish without luster produced by use of roughened rolls. \n(B) Bright finish – a luster finish produced by use of rolls having a moderately smooth surface. \nCOLD ROLLED STEEL SHEETS\n(A) Commercial Finish. A dull satin surface texture produced by roughened rolls. \n(B) Commercial Ð Bright Finish. Bright in appearance with a texture between luster and a very fine matte finish. \n(C) Luster Finish produced by use of ground and polished rolls. (Note Ð This is not a number 3 finish.) \nCOLD ROLLED STRIP STEELS\nNo.1 Finish – A dull finish produced without luster by rolling on roughened rolls. \nNo.2 Finish – A regular bright finish produced by rolling on moderately bright rolls. \nNo.3 Finish – Best Bright Finish – A lustrous or high gloss finish produced by rolling on highly polished rolls – Also referred to as “Mirror Finish.” \nCOPPER BASE ALLOYS\nAcid Dipped-Dry Rolled Finish. Produced by dry cold rolling bichromate dipped alloy with polished rolls, resulting in a burnished appearance and retaining the color obtained by dipping (True Metal Color). \nBright Dipped Finish – Finish resulting from an acid dip. \nBuffed or Polished Surface – A finish obtained by buffing, resulting in a high gloss or polished finish. \nCold Rolled Finish – A relatively smooth finish obtained by cold rolling plain pickled strip with a lubricant. \nDry Rolled Finish – A burnished finish resulting from dry cold rolling by use of polished rolls without any metal lubricant. \nHot Rolled Finish A dark relatively rough oxidized finish resulting from rolling the metal while hot. May subsequently be pickled or bright dipped but the rough surface remains. \nScratched Brushed Finish (Satin Finish) – Obtained by mechanically brushing with wire brushes or by buffing. \nFLAT WIRE\nNo.2 Finish – A regular bright finish. \nNo.3 Finish – Best Bright High Gloss Finish produced by use of polished rolls. Or by special buffing-this is a negotiated finish. \nSTAINLESS COLD ROLLED SHEET and STRIP Nos. 1, 2B & 3B.\nNo.1 Finish – C.R. Annealed and pickled appearance varies from dull gray matte finish to a fairly reflective surface. \nNo.2B Finish – Same as number 1 Finish followed by a final light cold rolled pass generally on highly polished rolls. \nNo.2D Finish – A dull cold rolled finish produced by cold rolling on dull rolls. \nSTAINLESS C. R. SHEET – Polished Finishes \nNo. 3 Finish – This is an intermediate polished finish. \nNo. 4 Finish – Ground and Polished. \nNo. 6 Finish – Ground, Polished and Tampico Brushed. \n No. 7 Finish – Ground and High Luster Polished. \nNo. 8 Finish – Ground and Polished to Mirror Finish. \nTEMPERED and UNTEMPERED COLD ROLLED CARBON SPRING STEEL STRIP \nClassified by description as follows: \n(A) Black Oil Tempered. \n(B) Scaleless Tempered \n(C) Bright Tempered. \n(D) Tempered and Polished. \n (E) Tempered, Polished and Colored (Blue or straw). \nTIN PLATE\n(A) Bright hot dipped finish. \n(B) Electro Matte Dull Finish. \n(C) Electro Bright Reflow Finish produced by the in-the-line thermal treatment following electrodeposition.